Java Utililty Methods SQL Table Column

Map<String, Integer> map = new HashMap<String, Integer>();
try {
    ResultSetMetaData rsmd = resultSet.getMetaData();
    int columnCount = rsmd.getColumnCount();
    for (int i = 1; i <= columnCount; i++) {
        map.put(rsmd.getColumnLabel(i), 1);
} catch (Exception e) {
...

ResultSet rs = conn.getMetaData().getColumns("", "", table, column);
while (rs.next()) {
    String tname = rs.getString("TABLE_NAME");
    String cname = rs.getString("COLUMN_NAME");
    if (tname.equals(table) && cname.equals(column)) {
        return rs;
throw new SQLException("Table or Column not defined. [table=" + table + ", col=" + column + "].");

Map<Integer, String> mapColumnName = new HashMap<Integer, String>();
int intStartIndex = 0;
if (isShowRowNum) {
    intStartIndex++;
    mapColumnName.put(0, "#");
ResultSetMetaData rsm = rs.getMetaData();
int columnCount = rsm.getColumnCount();
...

try {
    return meta.getColumnLabel(column);
} catch (SQLException e) {
    return meta.getColumnName(column);

final ResultSetMetaData meta = resultSet.getMetaData();
final List<String> result = new ArrayList<String>();
for (int i = 0; i < meta.getColumnCount(); i++) {
    result.add(meta.getColumnName(1 + i));
return result;

if (resultSet_ == null)
    return null;
ResultSetMetaData metaData = resultSet_.getMetaData();
int columnCount = metaData.getColumnCount();
if (columnCount < 1)
    return null;
String[] columnNames = new String[columnCount];
for (int i = 1; i <= columnCount; i++) {
...

ResultSetMetaData rsmd = rs.getMetaData();
int numColumns = rsmd.getColumnCount();
String[] columnNames = new String[numColumns];
for (int i = 1; i < numColumns + 1; i++)
    columnNames[i - 1] = rsmd.getColumnName(i);
return columnNames;

final ResultSetMetaData metadata = rs.getMetaData();
final int count = metadata.getColumnCount();
final List<String> columnNames = new ArrayList<>(count);
for (int i = 0; i < count; ++i) {
    columnNames.add(metadata.getColumnLabel(i + 1).toLowerCase());
return columnNames;

return getColumnNames(rs, false);

String[] columnNames = new String[rs.getMetaData().getColumnCount()];
for (int i = 0; i < columnNames.length; i++)
    columnNames[i] = rs.getMetaData().getColumnName(i + 1);
return columnNames;